Furnace-grate for locomotive and like boilers and other purposes.



J. A. HILL.

FURNACE GRATE FOR LOCOMOTIVE AND LIKE BOILERS AND OTHER PURPOSES.

APPLICAHON FILED MAR. 12. 1912.

1,212,058. Patented Jan. 9,1917.

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1. A HILL. FURNACE GRATE FCR LOCOMOTIVE AND LIKE BOILERS AND OTHERPURPOSES.

APPLICATION FILED MAR- IZ. I912.

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JOSEPH ALBERT HILL, 0F SHEFFIELD, ENGLAND.

FURNACE-GRATE FOR LOCOMOTI'VE AND LIKE BOILERS AND OTHER PURPOSES.

Application filed March 12, 1912.

To all whom it may concern 1 Be it known that I, JOSEPH ALBERT HILL, :1subject of the King of Great Britain and Ireland, and resident ofBernard Road, Park, Sheffield, in the county of York, England, haveinvented a certain new and useful Improved Furnace-Grate for Locomotiveand like Boilers and other Purposes, of which the following is aspecification.

This invention relates to furnace grates for locomotive and otherboilers of the type composed of two or more portions adapted to betilted about their longitudinal axes in such a manner as to leave one ormore gaps or slots through which the fire can be dropped thus obviatingthe usual tedious operation of dropping the fire-bars severally whichleads to considerable delay in drawing the fire.

The object of the present invention is to devise an improved form offurnace grate of the above type in which the manipulation of the gratesections and of the bars composing the same shall be greatly simplifiedand facilitated, and the invention consists in a furnace grate forlocomotive and other boilers divided into two or more portions andprovided with separate and independent gears enabling the fire-bars tobe shaken or the parts of the furnace grate to be rocked as a whole.

The invention also consists in adapting a single operating device toactuate both the shaking and rocking gears.

The invention further comprises the special form of furnace gratehereinafter more particularly described.

The accompanying drawings illustrate one mode of carrying out theinvention.

Figure 1 is a longitudinal sectional elevation showing one convenientform of furnace grate constructed in accordance with the invention. Fig.2- is a front elevation of a part of Fig. 1. Fig. 3 is a plan of adetail of Fig. 2. Fig. 4 is a view illustrating the rocking of thefurnace grate. Fig. 5 is a similar view illustrating the shaking of thefire-bars, while Fig. 6 is a plan on a somewhat larger scale showing aportion of the rocking and shaking gears.

In carrying my invention into effect in one convenient manner whenapplying it, for example, to a furnace grate for locomotives of the typewhich is provided with a plurality of longitudinally arranged airSpecification of Letters Patent.

Patented J an. 9, 1917.

Serial No. 683,199.

conduits for facilitating the passage of air to the fuel and also forcollecting the ashes for subsequent removal from the conduits by steamor like jets, the conduits a supporting transverse fire-bars c and ofwhich there may be any convenient number (four such conduits beingillustrated in the drawings) are rotatably mounted within the firebox,for example, by means of plate or like members a which are secured to orformed integral with pins 6 mounted in suitable bearings 0, carried bythe walls (Z of the fire-box.

The conduits are carried rotatably in the plates u in any suitablemanner and for the purpose of providing for both the rocking of thegrate sections carried by the plates 'uand the shaking of the individualconduits and the bars carried thereby I provide twosets of rods-econnected in any suitable manner with corresponding sets of bell cranklevers g h pivotally mounted upon some fixed portion of the framing ofthe locomotive or of the fire-box and coupled together respectively byrods 2' 70 upon which lugs or brackets Z m are rigidly mounted.

The lugs Z m are provided with slots adapted to be engaged when requiredby lugs or projections 12 carried by a lever 0 working in a guide platep fixed in any con- .venient position in the cab of the locomotive.

ment is such that when the lever 0 is workng in the slot its lower endis 1n engagement with the lug or bracket Z and consequently movement ofthe lever through the medium of the link 2' operates the bell cranklevers g and rods e so that the individual conduits, and with them thefire-bars, are tilted in the manner shown in 5, the oscillatory movementof the conduits being effected through the intermediary of the T shapedor other suitable bars or connecting members t attached both to theconduits and to the rods e.

When the lever 0 is moved across the slot 8 its lower end is disengagedfrom the bracket Z and engages with the bracket m so that movement ofthe lever in the slot 1' operates the bell crank levers h and throughthem the rods 7 so that the brackets u are thereby tilted in the mannershown 'points at which the rods 6, are connected with the bracketmembers 6 secured to the conduits are situated in or approximately inthe axes of rotation of the pins 6 of the bracket members a and anyslight movement that might be given to the rods due to slight inaccuracyin the fitting of the apparatus can be eliminated by providing a slot atone end at each of the bars 6.

Ifdesired the grate may be formed in two halves, either of which may beadapted to be tilted when required, or both may be separately tilted,separate operating mechanisms for the two halves of the grate beingprovided, if necessary, for this purpose. Such an arrangement allows ofonly onehalf of the fire being worked at a time, if desirable, theremaining part of the grate being thrown out of action by being tiltedout of the horizontal.

A further advantage of the arrangement is that the firemen may work theclean fire on to one-half of the grate and the clinker and ash on to theother half which may then be tilted for the purpose of getting rid ofthe waste after which this latter portion of the grate may be returnedto its normal position and the cleaned fire worked all over the gratearea.

It will thus be seen that by means of my mproved arrangement the furnacegrate can be thoroughly shaken during the running of the locomotive andthe operations of devices for actuating the rocking and shaking gear maybe provided if desired.

Having now described my invention what I claim as new and desire tosecure by Letters Patent is 1. A furnace grate for locomotive and otherboilers and for other purposes comprising a plurality of sectionscomprising pivotally mounted fire-bars, link mechanism for eifecting thetilting of said sections about their longitudinal axes, a second set oflink mechanism for effecting the shaking of the fire-bars composing eachsection, a lever for operating either set of link mechanism as desired,and a guide plate having an angled slot for controlling the movements ofthe lever.

2. A furnace grate for locomotive and other boilers and for otherpurposes comprising two sections, each of which is composed of twoconduits supporting transverse fire-bars therein, link mechanism forrocking the grate sections about their longitudinal axes, a second setof link mechanism for oscillating the individual conduits forming thesections, and a single operating member for actuating either set of linkmechanism as desired.

3. A furnace grate for locomotive and other boilers and for otherpurposes comprising two sections, each of which is composed of twoconduits supporting transverse fire-bars therein, link mechanism forrocking the grate sections about their longitudinal axes, a second setof link mechanism for oscillating the individual conduits forming thesections, a single lever for actuating either set of link mechanism asdesired, and an angled guide controlling the movements of said lever.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOSEPH ALBERT HILL.

Witnesses:

BERTRAM H. MATTHEWS, W. WARREN TRIGGS.

copies olthk patent may be obtained for five cents each,.,by addressingthe Commissioner of Patents, Washington 13.0.

